Eth Enable Switch (Sw12); Rotary/Nand Enable Switch (Sw13) - Analog Devices ADSP-BF526 EZ-Board Manual

Push Button and Switch Settings

ETH Enable Switch (SW12)

The Ethernet enable switch (
Ethernet and NAND flash share the same lines and cannot operate at the
same time. By default, the
Table 2-9). Ethernet is enabled by setting the switch to
positions 1and 2 connect the PHY management bus (
SW12
position 3
SW12
the PHY in reset (set to
reset (set to
ON
Table 2-9. ETH Enable Switch (SW12)
SW12 Switch Setting
OFF, OFF, ON, OFF
, , ,
ON ON OFF ON

Rotary/NAND Enable Switch (SW13)

The rotary/NAND enable switch (
signals from the GPIO pins of the processor. When
ated GPIO signals can be used on the expansion interface II (see
Table 2-10). Position 4 of
NAND flash memory (
Table 2-10. Rotary NAND Enable Switch (SW13)
SW13 Position (Default)
1 ( )
ON
2 ( )
ON
3 ( )
ON
4 ( )
ON
2-14
SW12
settings are
SW12
enables the 50 MHz RMII clock.
ON
) or connects the PHY reset to the EZ-Board
OFF
).
Ethernet Mode
OFF (default)
ON
disconnects the chip enable for the
SW13
).
U4
From
Encoder (
Encoder (
Encoder (
Processor (
ADSP-BF526 EZ-Board Evaluation System Manual
) enables the Ethernet interface. The
,
OFF OFF
) disconnects the rotary encoder
SW13
To
) Processor (
SW5
) Processor (
SW5
) Processor (
SW5
, ) NAND (
U1 PH10
, , (see
ON OFF
, , ,
ON ON OFF ON
and
MDIO MDC
position 4 holds
SW12
is , its associ-
SW13 OFF
, )
U1 PF13
, )
U1 PF12
, )
U1 PF11
)
U15
.
).